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<div class="title">DAP_TI_TransferBlock<div class="ingroups"><a class="el" href="group__DAP__TestInput__gr.html">Test Input Commands</a></div></div>  </div>
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<p>Transfer the data that are recorded for various Test Input channels.  
<a href="#details">More...</a></p>
<p>Transfer the data that are recorded for various Test Input channels. </p>
<p>The <b>DAP_TI_TransferBlock Command</b> initiates the data transfer of a single trace data block of the recorded trace data. The command delivers the content of one trace data block in the Trace Data Management system.</p>
<p><b>DAP_TI_TransferBlock Request:</b> </p>
<div class="fragment"><div class="line">| BYTE | BYTE *******|</div>
<div class="line">&gt; 0x20 | DataRequest |</div>
<div class="line">|******|*************|</div>
</div><!-- fragment --><ul>
<li><b>DataRequest:</b> specifies the requested data from the Trace Data Management system.<ul>
<li><b>bit 0</b>: 1 = deliver one trace data block from any full trace data block (this includes SWO).</li>
<li><b>bit 1</b>: 1 = deliver one trace data block from SWO channel (even when partially filled).</li>
<li><b>bit 2</b>: 1 = deliver one trace data block from any partially filled trace data block (this includes SWO).</li>
</ul>
</li>
</ul>
<p><b>DAP_TI_TransferBlock Response:</b> </p>
<div class="fragment"><div class="line">| BYTE | BYTE ***| SHORT ****| WORD ********|+++++++++++++|</div>
<div class="line">&lt; 0x20 | Channel | DataParms | TD_TimeStamp | ChannelData |</div>
<div class="line">|******|*********|<span class="comment">///////////|//////////////|+++++++++++++|</span></div>
</div><!-- fragment --><ul>
<li><b>Channel:</b> <ul>
<li><b>bit 0..3</b>: number of the channel that the data belong to.</li>
<li><b>bit 4</b>: SWO record indicator: 1 = data belong to SWO data recording.</li>
<li><b>bit 6</b>: First record indicator: 1 = DataParms and TimeStamp is transferred. 0 = Only ChannelData.</li>
<li><b>bit 7</b>: No data indicator: 1 = No ChannelData available for this request. 0 = ChannelData are available.</li>
</ul>
</li>
<li><b>DataParms:</b> parameters for ChannelData.<ul>
<li><b>bit 0..12</b>: number of data values in <b>ChannelData</b>. <a class="el" href="group__DAP__TI__TransferBlock.html">DAP_TI_TransferBlock</a> Response is repeated until all values are transmitted.</li>
<li><b>bit 14</b>: 1 = difference value format. 0 = contiguous value format.</li>
<li><b>bit 15</b>: 1 = Trace Data Management overflow since last <a class="el" href="group__DAP__TI__TransferBlock.html">DAP_TI_TransferBlock</a> Request. 0 = no overflow.</li>
</ul>
</li>
<li><b>TD_TimeStamp:</b> Test Domain Timer value at the read time of data values for ChannelData.</li>
<li><b>ChannelData:</b> data values from the recorded Test Input channel.</li>
</ul>
<p>The <b>ChannelData</b> reply has depending on <b>DataParms bit 14</b> two different formats. If <b>ChannelDiff</b> in <b>DAP_TI_Capture Request</b> is set for the specific channel, the Debug Unit may decide the data format depending on the trace data values.</p>
<p><b>Contiguous Value Format</b> transmits sequentially all data values stored in the trace data buffer. When <b>DataParms bit 14 = 0 </b> the <b>ChannelData</b> has the following format: </p>
<div class="fragment"><div class="line">|************|************|************|......</div>
<div class="line">| TraceValue | TraceValue | TraceValue |</div>
<div class="line">|************|************|************|......</div>
</div><!-- fragment --><p>The size of <b>TraceValue</b> depends on the data size for the channel (see <a class="el" href="group__DAP__TI__Info.html">DAP_TI_Info</a> Response, Attributes bit 0..2). <a class="el" href="group__DAP__TI__TransferBlock.html">DAP_TI_TransferBlock</a> Response is repeated until the number of <b>TraceValues</b> specified by <b>DataParms bit 0 .. 12</b> is transmitted.</p>
<p><b>Difference Value Format</b> transmits data values only when there is a significant difference. When <b>DataParms bit 14 = 1 </b> the <b>ChannelData</b> has the following format: </p>
<div class="fragment"><div class="line">|*************| SHORT *****|*************|......</div>
<div class="line">| TraceValue0 | ValueIndex | TraceValueI |</div>
<div class="line">|*************|<span class="comment">////////////|/////////////|......</span></div>
</div><!-- fragment --><ul>
<li><b>TraceValue0:</b> is the first data value on the trace data buffer</li>
<li><b>ValueIndex:</b> information about the next data value in TraceValueI.<ul>
<li><b>bit 0..12</b>: <b>index</b> in trace data buffer of next data value with significant difference.</li>
<li><b>bit 15</b>: 1 = last trace value of trace data buffer send by <a class="el" href="group__DAP__TI__TransferBlock.html">DAP_TI_TransferBlock</a> Response.</li>
</ul>
</li>
<li><b>TraceValueI:</b> is the trace data value in in trace data buffer referenced by <b>index</b>.</li>
</ul>
<p>The size of <b>TraceValue0</b> and <b>TraceValueI</b> depends on the data size for the channel (see <a class="el" href="group__DAP__TI__Info.html">DAP_TI_Info</a> Response, Attributes bit 0..2). <a class="el" href="group__DAP__TI__TransferBlock.html">DAP_TI_TransferBlock</a> Response is repeated until <b>ValueIndex</b> with <b>bit 15 = 1</b> is transmitted.</p>
<dl class="section note"><dt>Note</dt><dd>When all data values in the trace buffer are identical, <b>ValueIndex</b> is set to number of data values with bit 15 set to 1. </dd></dl>
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